"Akoya luminous round" button 10 mm

Small natural Akoya shell button. 
It's a kind of pearly oyster. 
It is thin and slightly wavy, with pretty colors. 
It's the perfect button for a blouse for example.   2-hole button Material: Akoya (natural pearly shell) Size: 10mm diameter Care instructions: Before pressing or dry cleaning your garment, it is best to unsew the buttons. 
If you put them in the washing machine, wrap them in household aluminum foil, wash the garment inside out to avoid shocks, do not soak, spin gently, hang out immediately.
 What is Akoya?: A type of oyster, it is a naturally iridescent and pearly shell found in Japan